﻿using System.Threading;

namespace Lucene.Net.Support
{
    /*
	 * Licensed to the Apache Software Foundation (ASF) under one or more
	 * contributor license agreements.  See the NOTICE file distributed with
	 * this work for additional information regarding copyright ownership.
	 * The ASF licenses this file to You under the Apache License, Version 2.0
	 * (the "License"); you may not use this file except in compliance with
	 * the License.  You may obtain a copy of the License at
	 *
	 *     http://www.apache.org/licenses/LICENSE-2.0
	 *
	 * Unless required by applicable law or agreed to in writing, software
	 * distributed under the License is distributed on an "AS IS" BASIS,
	 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	 * See the License for the specific language governing permissions and
	 * limitations under the License.
	 */

    /// <summary>
    /// Mimics Java's AtomicReferenceArray class (partial implementation)
    /// </summary>
    /// <typeparam name="T"></typeparam>
    public class AtomicReferenceArray<T> where T : class
    {
        private T[] _array;

        public AtomicReferenceArray(int length)
        {
            _array = new T[length];
        }

        public int Length
        {
            get { return _array.Length; }
        }

        public T this[int index]
        {
            get
            {
                return Volatile.Read(ref _array[index]);
            }
            set
            {
                Volatile.Write(ref _array[index], value);
            }
        }
    }
}
